We will do our best to get to each of you and make sure that your company is safe. We will most definitely push out the security patch as soon as it is invented. For now, be aware and be informed. Take precautions and report any unusual activity.

Hackers have uncovered the first bug that could put Windows XP users at serious risk, after Microsoft ceased support for the aging operating system less than three weeks ago.

On Saturday, Microsoft announced that Internet Explorer versions 6 through 11 were at risk for so-called drive-by attacks from malicious websites. Windows XP is capable of running Internet Explorer 6, 7, and 8.

This new remote code execution vulnerability, dubbed CVE-2014-1776, has the potential to give hackers the same user rights as the current user. That means a successful attacker who infects a PC running as administrator would have a wide variety of attack open to them such as installing more malware on the system, creating new user accounts, and changing or deleting data stored on the target PC. Most Windows users run their PCs under an administrator account.

These attacks aren't theoretical, either—security firm FireEye discovered these attacks being actively used in the wild. For these attacks to work, however, a user would have to visit a malicious website attempting to install the code. Microsoft says attacks could also come from "websites that accept or host user-provided content or advertisements" where an attacker could insert malicious code.

Microsoft has yet to decide whether it will issue an emergency patch in the coming days or wait for patch Tuesday on May 13 to repair supported versions of IE.